<!DOCTYPE html>
<html lang="en">
<head>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<meta http-equiv="X-UA-Compatible" content="ie=edge">
	<title>Document</title>
	<style>
	div {
			width: 300px;
			height: 300px;
			margin: 50px auto;
			padding: 30px;
		
			 border: 20px dashed red;
			border-image-source: url('./img/paopao2.jpg');
			border-image-slice: 20;
			/* border-image-repeat: stretch; */
			/* border-image-repeat: round; */
			border-image-width: 20px;

	}
	</style>
</head>
<body>
	<div></div>
</body>
</html>